Ulysses Grant (President)
A rather significant aspect of his childhood was his ability to show exceptional stupidity. A particular time, his father asked him to go bargain for a horse, on getting there he said, "My father says I may offer you 20 dollars for the colt, but if you won't take it I am to offer 22 1/2 dollars and if u won't take that am to offer 25 dollars"...
This is the inspiring story of a man who went from being called "USELESS" to being called the "18th President of the United States"